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Das and Vincent (1) conclude that mangroves reduced the death toll from storm surge in the Orissa Super Cyclone. However, it is unclear from their analyses whether or not this effect occurs independently over and above that of other variables known to affect inundation by long-period waves, such as distance from the coast and topography (2). Further, Das and Vincent (1) are wrong to equate storm surges with windgenerated storm waves. Storm surges have a period of hours to days (3) and consequently behave more like the tide or a tsunami. An effect of vegetation has never been questioned (2). The drag of vegetation must reduce wave velocity to some degree. More important questions, however, are how much protection vegetation can provide and how this compares with other mitigating factors (2). The results suggest that mangroves offered little protection (1). The correlation coefficient (r 0.13) between …